Computers and Technology, 09.07.2020 05:01, Rach23s

Select the option that is not true. 1. Timestamp and Validation schedulers are both optimistic schedulers. 2. Timestamp and Validation schedulers can be used to remove physically unrealizable behaviour. 3. Timestamp and Validation schedulers guarantee serializability. 4. Timestamp and Validation schedulers perform most effectively on transactions that perform writes.

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Select the option that is not true. 1. Timestamp and Validation schedulers are both optimistic sched...